Had they believed in Allah and practised piety, they would have received a far better reward from AIIah, if they had but known it.
(Dan seandainya mereka) orang-orang Yahudi (beriman) terhadap Nabi dan Alquran (dan menjaga diri mereka) dari siksa Allah dengan meninggalkan maksiat, seperti sihir. Jawaban dari 'lau' ini dibuang.